The spherical base chamber of the Hubble Bubble Bong has a super cool look right out of the box. When in use, the diffused downstem and central tree percolator will create a frothy, boiling water effect that helps to filtrate contaminants and cool the smoke. For even colder rips, fill the built-in ice catcher with ice cubes. The notch just below the colored glass mouthpiece effectively keeps splashback where it belongs. Choose from clear heat-resistant glass with either blue, green, or amber accents along the mouthpiece, base, and percolator.